| # | Entity | Status | State |
|---|---|---|---|
| 1 | 68 080 456 064 R.D FOX & G.J STEELE Deontron Pty Ltd & Keystone Design Build Pty Ltd & Pillar Nominees Pty Ltd & Wellington Road Pty Ltd |
ABN Cancelled | VIC 3806 |
| 2 | 50 077 538 720 KEYSTONE DESIGN AND CONSTRUCT PTY LTD & T.M LACEY & Lacey Services Pty Ltd & M NEIL |
ABN Cancelled | QLD 4011 |
| 3 | 22 655 327 530 KEYSTONE DRAFTING & DESIGN PTY LTD |
ABN Active | SA 5159 |
| 4 | 22 974 570 729 KEYSTONE DESIGN AND BUILD PTY LTD & THE ALLGOOD FAMILY TRUST & THE BAADE FAMILY TRUST & THE TRUSTEE FOR CHENNEDI TRUST & THE TRUSTEE FOR THE COLNAGO NOMINEES FAMILY TRUST & others |
ABN Cancelled | VIC 3121 |
| 5 | 45 055 703 225 KEYSTONE DESIGN AND BUILD PTY LTD |
ABN Active | VIC 3803 |
| 6 | 55 075 076 925 KEYSTONE DESIGN PTY LTD |
ABN Cancelled | NSW 2086 |
| 7 | 84 601 855 690 KEYSTONE ALLIANCE LANDSCAPE DESIGN PTY LTD |
ABN Active | VIC 3072 |
| 8 | 98 104 284 433 KEYSTONE DESIGN AND CONSTRUCT PTY LTD |
ABN Active | QLD 4059 |